Comment # 7 on bug 1102563 from Michal Srb

(In reply to Guillaume GARDET from comment #6)
> With WaylandEnable=true on AArch64 I am able to login but loginctl still
> tell me that it is an X11 session.

That is ok. You can log into both X11 and Wayland sessions from GDM that is
itself running in Wayland mode. It seems that the default session type is a X11
session.

> I noticed that login screen appears for 1 second, then a black screen for 1
> second and the login screen appears again.
> It seems that login screen using Wayland is shown, crashes and the login
> screen using X11 is finally loaded. Is it possible?

Maybe yes. The black screen could be also the failed attempt for autologin.

Please delete any ~/.xsession-errors* files in the home directory of the user
that was supposed to be autologged-in, then reboot. When you get the login
screen instead of the expected autologin, check if any such files were
recreated. If yes, please attach them.